Z Interval; General Confidence Interval Precaution; 1 Sample Z Interval; 2 Sample Z Interval - Casio FX-CG20 AU User Manual

u General Confidence Interval Precaution
Inputting a value in the range of 0 < C-Level < 1 for the C-Level setting sets a value you input.
Inputting a value in the range of 1 < C-Level < 100 sets a value equivalent to your input divided
by 100.
k Z Interval
u 1-Sample
Interval
Z
Z
1-Sample Interval calculates the confidence interval for an unknown population mean when
the population standard deviation is known.
Perform the following key operations from the List Editor.
The following shows the parameter data specification items that are different from list data
specification.
Calculation Result Output Example
u 2-Sample

Z Interval

Z
2-Sample Interval calculates the confidence interval for the difference between two
population means when the population standard deviations of two samples are known.
Perform the following key operations from the List Editor.
4(INTR)
1(Z)
1(1-SAMPLE)
4(INTR)
1(Z)
2(2-SAMPLE)
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